package handler

import (
	"cms-pro/cache"
	"cms-pro/models"
	"encoding/json"
	"github.com/gin-gonic/gin"
	"strconv"
	"time"
)

func Add(c *gin.Context) {
	title := c.PostForm("title")
	content := c.PostForm("content")
	author := c.PostForm("author")
	if title == "" || content == "" || author == "" {
		c.JSON(200, gin.H{
			"code": 500,
			"msg":  "字段不能为空",
		})
		return
	}
	data := models.News{
		Title:   title,
		Content: content,
		Author:  author,
	}
	err := models.DB.Create(&data).Error
	if err != nil {
		c.JSON(200, gin.H{
			"code": 500,
			"msg":  "添加失败",
		})
		return
	}

	redis_key := "news_id_" + strconv.Itoa(int(data.ID))
	var news models.News
	models.DB.Where("id = ?", data.ID).First(&news)

	jsonData, _ := json.Marshal(news)
	cache.Rdb.Set(cache.Ctx, redis_key, jsonData, time.Hour*2)
	c.JSON(200, gin.H{
		"code": 200,
		"msg":  "添加成功",
	})
	return
}
func Del(c *gin.Context) {
	id := c.Query("id")

	models.DB.Where("id = ?", id).Delete(&models.News{})

	redis_key := "news_id_" + id
	cache.Rdb.Del(cache.Ctx, redis_key)

	c.JSON(200, gin.H{
		"code": 200,
		"msg":  "删除成功",
	})
}
func List(c *gin.Context) {
	var news []models.News
	redis_key := "list_news"

	cacheData, _ := cache.Rdb.Get(cache.Ctx, redis_key).Result()

	if cacheData == "" {

		models.DB.Find(&news)

		jsonData, _ := json.Marshal(news)

		cache.Rdb.Set(cache.Ctx, redis_key, jsonData, time.Hour*2)

	} else {
		json.Unmarshal([]byte(cacheData), &news)
	}
	c.JSON(200, gin.H{
		"code": 200,
		"msg":  "列表获取成功",
		"data": news,
	})
}
